The Frenchay activities index is a measure of instrumental activities of everyday living.The FAI assesses a broad range of activities associated with everyday life including social and family participation

Patients in the sham group used the threshold trainer (Threshold at IMT device URES HS730, Respironics, New Jersey, Inc, Cedar Grove, NJ, USA), with the diaphragm removed.

Device: Sham inspiratory muscle training (URES HS730)

Subjects in the control group underwent sham training, using the same device with the diaphragm removed, thus providing no resistance. They were not given frequency or duration but told to use the device when desired.

Other Name: Threshold at IMT device URES HS730, Respironics

Experimental: Inspiratory muscle training

Inspiratory muscle training will be by a threshold trainer (Threshold at IMT device URES HS730, Respironics, New Jersey, Inc, Cedar Grove, NJ, USA), a commercially available spring-loaded inspiratory muscle training device. It will be set at 40% of the subjects baseline maximal inspiratory pressure and increased by 10% each week by an unblinded assistant. All subjects were trained with these devices for 8-10 breaths, 3 times a day, everyday for 6 weeks

Device: Inspiratory muscle training (URES HS730)

It will be set at 40% of the subjects baseline maximal inspiratory pressure and increased by 10% each week by an unblinded assistant. All subjects were trained with these devices for 8-10 breaths, 3 times a day, everyday for 6 weeks

Other Name: Threshold at IMT device URES HS730, Respironics

Detailed Description:

Patients with chronic renal failure commonly have weak respiratory muscles leading to problems in everyday activities and respiratory infections.

This project aims to investigate if threshold inspiratory muscle training improves the strength, everyday function and participation of patients on haemodialysis. Forty eight patients will be recruited in a randomized controlled trial of inspiratory muscle training vs sham training.

Outcome measures include the maximal inspiratory pressure and the Frenchay activities index. Initial data will be collected by a blinded assessor; the patients will train at 40 % of initial maximal inspiratory pressure for six weeks and be reassessed. If the inspiratory muscle training is effective, it will improve both the physical and functional components of the patient's lives and be recommended for all renal patients.

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01347775